551 to 575 of 1,348 Senior Software Engineer Jobs in the UK

Channel Factory is seeking a Senior Software Engineer to join a growing team. You will deliver end-to-end features across the stack, lead architectural decisions, and ensure code quality and performance. The role involves collaboration with product, design, and other engineers, and may include travel … person coordination. Ideal candidates have 3+ years of software development experience, strong Python/Django skills, and experience with ReactJS and AWS. #J-18808-Ljbffr ...

Longshot Systems we build advanced platforms for sports betting analytics and trading. We’re looking for a Senior Software Engineer to join the team that owns and develops our trading platform. Longshot is a small, focused company and so the role suits someone who can architect ...

powerful, accurate and reliable quantum systems to tackle problems that today's supercomputers cannot solve. We're looking for an enthusiastic and highly technical Senior Software Engineer for our non-realtime controllers team who will thrive in our dynamic cross-disciplinary environment. You will be working closely … with our skilled software engineers, our systems teams who operate the physical quantum computers, and our world-leading quantum scientists to build and operate the software that controls the hardware surrounding our quantum computers. Previous exposure to quantum systems is not required. You will own areas ...

Haven is seeking a Senior Software Engineer to craft AI-powered experiences for millions of holidaymakers. You’ll work end-to-end on scalable web applications in a cloud-first setup and ship resilient software with Claude-based tooling. This UK remote role offers occasional travel ...

global leader in public transit solutions is looking for a Senior Software Engineer in Manchester to drive innovation in public transportation technology. The successful candidate will have at least 5 years of experience in software development, specializing in C++ and Java, along with cloud platform expertise. ...

seeking a Senior Software Engineer - Research Technology in London to design and operate compute-intensive analytics platforms. You will work on ingest, simulation, and research tooling in a fast-paced environment with onboarding support for trading contexts. Responsibilities include building scalable data systems, optimizing performance, and mentoring … junior teammates while delivering reliable software for researchers and trading teams. #J-18808-Ljbffr ...

today and is transforming how they can interact with markets tomorrow. For more information, visit https://the company.io. The Role As a Senior Software Engineer on Clear Street's Payments team, you'll play a key role in scaling and modernising our rapidly evolving global … processes, and offer our customers a smooth payment experience, helping to shape the future of the Clear Street financial ecosystem. What You'll Do Engineer highly reliable, API-driven payment systems that streamline operations and support our global expansion. Translate product and design requirements into clean, maintainable and well ...

travel experiences. We're on an exciting journey of growth and transformation – we're going places. The opportunity We're looking for a Senior Software Engineer to help shape one of the most critical platforms within our Loyalty division. You'll join the team responsible … Boot and AWS, while having the opportunity to influence technical direction and how the team builds and operates software. This is a hands‐on senior engineering role where you'll own solutions through to production, contribute to architectural decisions, mentor other engineers and help us continuously raise ...

Join Powster -- an award-winning (FWA, Awwwards, Clios, Webby) creative studio in central London. We're looking for a Senior Creative Software Engineer to lead WebGL activations and interactive web experiences for clients such as Universal Pictures, Netflix, Amazon Prime Video, Paramount Pictures, Disney and many more … keen on keeping up-to-date with modern coding practices. Proven creative development experience : You have a minimum of 4+ years as a Frontend Software Engineer leading and working within WebGL development. Tech Leadership & Project Ownership: Full ownership of the software development lifecycle (SDLC) from Creative Ideation ...

Almac Central Services is seeking a Senior Software Engineer to design, build and evolve platforms that power our business. You will own end-to-end delivery, turning complex requirements into robust software, while shaping standards, architecture, and security for scalable systems. You will work across ...

center of everything we do. What is the role? As part of our team, you'll leverage your diverse skills to support both Software Engineers and QA Engineers, tackling the daily challenges of their roles. Your specialist knowledge will be invaluable in suggesting improvements to enhance quality and streamline … workflows, ensuring we continue to exceed our customers' expectations. As a Senior Software Engineer (SDET), you'll be the transformational force that revolutionizes our testing approach. You'll leverage AI and advanced analytics to identify quality gaps, architect intelligent testing solutions, and establish new standards for test ...

recently public company, you’ll have the autonomy and support to make an impact as we build for the long term. As a Senior Software Engineer on the Safety Detection Precision team, you’ll help close the gap between AI detection of safety risk on the road … generation of detection models and ensuring today’s detections translate into meaningful real-world risk reduction. This role is a strong fit for an engineer who enjoys shaping ambiguous, high-impact systems end-to-end and wants to directly influence customer trust and value in Samsara’s Safety products. ...

Mondrian Alpha is seeking a Senior Software Engineer to join a high-performing team. You will own projects from design through deployment, building modern business systems, cloud data platforms, APIs, automation and AI-enabled solutions that support the investment platform. You will work directly with investment, finance … operations teams to deliver impactful software, leveraging AI-assisted engineering and modern tooling. #J-18808-Ljbffr ...

Online Filings is seeking a Senior Software Engineer to architect and develop our next-generation web application and API. This role requires technical leadership, hands‐on development, and mentoring of junior developers to ensure scalability, security and performance. If you are passionate about software development, enjoy ...

Principal/Senior Software Engineer x2 Inside IR35 Contract Rate: up to £800/day Location: Remote/London Duration: 6 months initially Description: The opportunity This is a contract engagement supporting a major Information Security AI transformation, a large programme that is modernising and automating … security operating model with agentic AI. We are looking for both a Principal and Senior hands-on engineer to drive the build of a portfolio of agentic AI security applications, defining the solution architecture and contributing to the most complex components of the solution and system design. ...

Halliburton is seeking a Senior Software Engineer to design, develop, and modernize high-performance Rock Physics desktop and cloud applications. You will own the technical direction, write code daily, review pull requests, and drive architectural decisions. You will lead migration of legacy C/C++ codebases ...

Northrop Grumman UK is seeking a Senior Software Engineer to design, develop and maintain the infrastructure that powers our services. You will be self-driven and organised with a passion for building elegant and stable solutions, and you will lead a team through technical and delivery challenges. ...

sites. We can both help traders make decisions about how to trade, and disaggregate said trades into per-asset dispatch decisions. This is production software with genuine commercial and operational impact. It not only support key traders' workflows, but also it drives physical asset dispatch and the delivery … work with data scientists and traders to turn prototypes into reliable, well tested services they can trust. The Role We’re looking for a Senior Software Engineer to join Humboldt and help shape Asset Backed Trading as it grows into new countries and capabilities. You will work ...

opportunity We are hiring for a Senior Software Engineer to join our Web Platform team here at Unity. Unity's Web platform lets games and real-time 3D content run in a browser, on any internet connected device. Browser capability has moved fast, browser gaming is going ...

FullFibre is hiring a Senior Software Engineer to join the Systems, Development and Data team. You will work on Python microservices, Rust modules, web apps, and API integrations, building new features and end-to-end delivery in a remote-first UK team. You’ll lead architecture, collaborate ...

CoreWeave in London seeks a Senior Software Engineer, Inference, to own architectural designs and raise engineering standards across multiple services. You will partner with product, orchestration, and hardware teams to evolve a Kubernetes-native inference platform while meeting strict P99 SLAs at scale. You will lead design ...

Darktrace is seeking a Senior Software Engineer to own the prototyping and development of innovative ideas, balancing creativity with practical delivery. You’ll work with a cross-functional team across engineering, design, project coordination and technical strategy to scale Darktrace’s services. This hybrid role requires attendance ...

Printed.com is seeking a Senior Software Engineer to join our Engineering team. You’ll work on PHP (Symfony/Laravel) applications on AWS (EC2 and EKS), contributing across multiple projects while shaping engineering practices. The role requires initiative, strong problem-solving, and mentoring others; the position ...

Lloyds Banking Group in Edinburgh is seeking a Senior Software Engineer to design, build and evolve modern payment solutions. You will join the Payments Services Platform team to enable millions of customers and businesses to move money safely, quickly and confidently. The role focuses on scalable, secure … software, cloud-native delivery and collaboration with cross-functional teams in a hybrid setup. A strong background in Java and cloud platforms is essential. #J-18808-Ljbffr ...

Legora is redefining how legal work is done. As a Senior Software Engineer, you will build, review and ship products that help legal professionals worldwide, with ownership across the stack. You will work with TypeScript, React, Node.js, AWS, Azure and Kubernetes, review code, mentor juniors, and drive ...